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Highly Active and Selective Catalysis of Copper Diphosphine Complexes for the Transformation of Carbon Dioxide into Silyl Formate
Author(s) -
Motokura Ken,
Kashiwame Daiki,
Takahashi Naoki,
Miyaji Akimitsu,
Baba Toshihide
Publication year - 2013
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201300935
Subject(s) - hydrosilylation , formate , catalysis , chemistry , phosphine , copper , ligand (biochemistry) , benzene , carbon dioxide , homogeneous catalysis , medicinal chemistry , methyl formate , dichloromethane , silylation , photochemistry , solvent , organic chemistry , biochemistry , receptor
Copper diphosphine complexes have been found to be highly active and selective homogeneous catalysts for the hydrosilylation of CO 2 . The structure of the phosphine ligands strongly affects their catalytic activity. Turnover number (TON) reaches 70 000 after 24 hours with 1,2‐bis(diisopropylphosphino)benzene as a ligand under 1 atmosphere of CO 2 . 1 H and 13 C NMR spectra, carried out under the reaction conditions, showed the reaction mechanism through insertion of CO 2 into CuH to afford Cu/formate species.